| 24,15 → 24,15 |
|---|
| |
| xor ax, ax |
| mov es, ax |
| mov byte [es:0x9020], 1;default mechanism:1 |
| mov byte [es:BOOT_PCI_DATA], 1;default mechanism:1 |
| mov ax, 0xb101 |
| int 0x1a |
| or ah, ah |
| jnz pci16skip |
| |
| mov [es:0x9021], cl;last PCI bus in system |
| mov [es:0x9022], bx |
| mov [es:0x9024], edi |
| mov [es:BOOT_PCI_DATA+1], cl;last PCI bus in system |
| mov [es:BOOT_PCI_DATA+2], bx |
| mov [es:BOOT_PCI_DATA+4], edi |
| |
| ; we have a PCI BIOS, so check which configuration mechanism(s) |
| ; it supports |
| 41,7 → 41,7 |
|---|
| jnz pci16skip |
| test al, 2 |
| jz pci16skip |
| mov byte [es:0x9020], 2; if (al&3)==2 => mechanism 2 |
| mov byte [es:BOOT_PCI_DATA], 2; if (al&3)==2 => mechanism 2 |
| |
| pci16skip: |
| |